off road jitters!!!!!

I should be getting my offroad h pipe soon, and I can't wait. Anyone who has a mac offroad h and A/T catback, stock headers for now, how long will the grin be plastered to my face, and how much louder is it really? would you want to have your head a foot away from your tips at 4000 rpm ?

I haven't ran one legally yet. I think my drive shaft isn't balanced anymore, something vibrates, and make a lot of noise under the car, out of gear above 95mph. And traction could be better in first but of course you know that unless you bought your car already modded.